Boiler-tube cleaner.



D. M. MYERS.

BOILER TUBE CLEANER,

ABPLIOATION FILED JUNE 29, 1912.

Patented Jan. 13,1914.

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COLUMBIA PLANOGRAPH CO.,WASIHNGTON, u. c.

D. M. MYERS.

BOILER TUBE CLEANER.

APPLICATION rum) JUNE 29, 1912.

Patented Jan. 13, 1914.

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/ Atty urrn s'rn'rns DAVID MOFFAT MYERS, OF NEW YORK,

BOILER-TUBE CLEANER.

Application filed June 29, 1912.

To all whom it may concern Be it known that 1, DAVID MorrA'r MYERS, of New York, N. Y., have invented certain Improvements in Boiler-Tube Cleaners, of which the following description, in connection with the accompanying drawings, is a specification, like letters on the drawings designating like parts.

This invention relates to furnaces, and'is of particular utility when applied to furnaces having set therein a plurality of boilers of the type provided with substantially horizontal tubes through .which the hot prod-.- ucts of combustion are led, althoughl contemplate the use of my improvements in any field to which they are adapted by their nature.

An important object of my invention is to provide an appliance for delivering to each boiler tube a blast of cleansing fluid, such as steam, in the direction of the draft constitutedby passage of the products of combustion, and for this purpose to construct and arrange the boiler settng and blower so that the latter may be applied closely adjacent to the respective orifices of the several tubes during the cleansing operation, a further object being to provide for complete withdrawal of the blower from the space occupied by the products of combustion when the blower is not in use, and its use for each of the boilers in turn.

Among other important objects of my invention are comprised the provision of means to permitthe blower to be adjusted laterally for treatment successively of a plurality of upright series of tubes, this means preferably taking the form of a horizontally Specification of Letters Patent.

extended frame opposite each boiler, traversing the thickness of the setting-wall, and serving as a rest along which the blower may be moved at the will of the operator, who is thus relieved of the weight of the blower, and who may withdraw the blower therethrough, after turning the blower so that its head (elongated to extend in front of several tubes in upright series), is parallel with the horizontal axis of the slot in the frame, a door being provided preferably to close this slot.

Still another object of my invention is to provide means to conduct to the blower a supply of cleansing fluid in such a manner that the blower may be moved ieadily from one boiler to another without disturbing the connection with the source of cleansing fluid.

Patented J an 13, 1914.

Serial No. 708,565.

The various features of my invention will be illustrated and described fully in the accompanying drawings and specification and set forth inthe claims.

In the drawings, Figure 1 illustrates in rear elevation a set of boilers in the construction of which my invention has been embodied; and Fig. 2 is a fragmentary perspective view, partly in section, of a portion of the furnace opposite the end of one of the boilers: illustrating the blower in operative relation with the boiler tubes and flexible conduit, of which fragments are shown; Fig. 3 is a'vertical, sectional view in detail, on a larger scale, taken on the lines X X Fig. 2; Fig. 4.- is a transverse sectional view of a modified form of shank for the blower.

In the embodiment of my invent-ion selected for illustration and description to enable ready and complete understanding of my improvements, the part. designated by reference numeral 1 is the wall, of any suitable material, such. as brick, which forms part of the setting for the boilers 2, the latter being shown as having each a plurality of substantially horizontaltubes 3, arranged in a plurality of upright series, and through which the products of combustion draw in the direction indicated by the arrow in Fig. 3.

In accordance with my invention, I provide in the setting one or more apertures l (best seen in Fig. 3), preferably one for each of the boilers, and preferably extending laterally at about the mid-plane of the boiler,

each aperture preferably being surrounded by a protective metal frame 5 the sill of which serves as a rest for the blower to be now described, and each framepreferably having a suitable closure 6 such as the hinged door illustrated, with a suitable lifting device 7 I At 10 I have shown one convenient form right series of boiler tubes 3 which are to be treated at any given time, so that the cleansing fluid will be delivered, with maximum efliciency and without waste, directly into the tubes, in the direction of the draft.

To permit convenient manipulation of the blower, suitable means are provided, such of blower to serve in combination with the" and so on until as the tubular shank 12, joined to the head 10 at a suitable region, as at its middle, this shank having preferably a suitable handle 13, and being provided with a suitable conduit for the cleansing fluid, shown in the instance illustrated as a flexible hose 14, coupled to the blower at 15, and in connection with a suitable source 16 of cleansing fluid under pressure, such as a pipe in communication with the live steam generated by the boiler plant shown, the hose 14; being preferably of suflicient length to permit ready application of the blower to the several boilers, in turn.

In operation, the door 6 of the boiler to be cleaned is opened, the head 10 of the blower is inserted horizontally until within the space between the setting 1 and the boiler tubes 3, and the shank 12 rests upon the sill of the frame 5, and by turning the handle 13, the jets 11 are brought respectively each opposite the tube which it is to clean, in one of the upright series of tubes. The blast of cleaning steam may then be ad mitted by turning the valve 17, and when that series of tubes has been cleaned, the .shank 12 is 'moved laterally to bring the head 10 opposite the next upright series, all the tubes have been cleaned. I may provide the shank of the blower with suitable means to hold it againstvertical displacement from the horizontal plane in which it moves laterally, and as one form of such means I have shown in Fig. 1 a block or enlargement 20, formed in any suitable manner, and in the instance illustrated comprising a separately formed block brazed upon the shank 120. This cooperating bearing member does not interfere with free lateral movement of the blower along the bearing frame 5, but lends stability to the blower in its adjusted positions opposite the respective upright series of boiler tubes. When one boiler has been thus cleaned, the blower may be turned, and withdrawn, the door closed, and the opera tion reproduced upon transfer of the blower to another boiler, and so throughout the plant, one blower sufiicing for all the boilers. I provide thus for absolute removal of the blower from the destructive influence of the products of combustion which has hith erto militated against the economical and successful operation of blowers of this type.

Having illustrated and described my invention thus fully, and suitable means for carrying the same into effect, I wish it understood that I do not limit myself to the specific materials and construction herein shown and described by way of example, nor in general do I limit myself otherwise than as set forth in the claims read in connection with this specification.

lVhat I claim as new, and desire to secure by United States Letters Patent is 1. The combination with a boiler of the class described, having a plurality of tubes in a plurality'of upright series; of a setting for said boiler having a horizontal opening in the form of a slot in its rear; and a blower by which steam may be introduced to said tubes in line with their axes respectively, the shank of said blower being situated in said slot horizontally and movably; said slot forming a rest and guide for said blower and being of sufiicient length to permit introduction of said blower and movement .thereof bodily in alateral direction to face directly each of said upright series, and to permit removal of said blower bodily.

2. The combination with a boiler having tubes, and the upright rear wall of its setting provided with a bearing having an elongated horizontal plane aperture; of a cleaning device having a blower portion of sufficient length to deliver the cleaning fluid to a plurality of said tubes in series; said blower portion being of a length suitable to permit its introduction horizontally through said aperture and its subsequent rotation within said setting to bring said blower portion opposite an upright series of said tubes to face said tubes directly in the line of their axes and to blow the soot in the direction of the draft, said device being movable bodily laterally to treat successively a pluralit-y of said upright tubes, and being capable of complete withdrawal rearward from the boiler setting and from the space occupied by the products of combustion.

Signed at New York in the county and State of New York, this 28th day of June, 1912.

DAVID MOFFAT MYERS.

WVitnesses GEORGE F. BENTLEY, EDcEwoRTH GREENE.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

I Washington, D. G. 

